         {% with messages = get_flashed_messages(category_filter=["ok"]) %}
            {% for message in messages %}
                {% if message %}
                <div class="alert alert-success alert-dismissible">
                    <button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
                    <h4><i class="icon fa fa-check"></i> 操作成功</h4>
                    {{message}}
                </div>
                {% endif %}
            {% endfor %}
        {% endwith %}